Pivot-gun



K. HALLER.

PIVOT GUN.

APPLICATION FILED SEPT. 4, I920.

Patentgd Apr. 5, 1921.

siding at Essen, Germany, a

xu vrrr BALIiER, or Essen, GERMANY,

essieuon 'ro rnrnnfxiwrrnxrrnn GESELLSCHAFT, OF ESSEN-ON-THE-BUHR,1GERMANY.-

rrvo'nomu.

Specification of Letters Patent.

Patented Apr. 5,

Application filed September 4, 1920. Serial no. 403,404.; V 7

To all whom it may concern;

Be it known that I,

citizen of the have invented a certain German Republic,

' Improvement in Pivot new and useful Guns, of which the following is a tion. s

. This invention refers to apivot'gun, the i n barrel of which is mounted .perinacover A, which shuts the inner chamber B trunnions (e of the covered positionofif from the outside, projectsthe pedestal mounting G of the gun,

which isrigidly attached to the cover A, and

between which cover A and a fla'n'gec on the pedestal C is placed-a packing. The upper carriage Dot the gun can rotate relatively to the pedestal-C about'the axisof the hollow pivot pin d mounted thereon andwhich upper carriage is carried in the upper part of the pedestal C and an extension of the pedestal, which surrounds the middle portion of the pivot pin. [The ex-. tension 0 of the pedestal C, which passes through a lid a inserted in the cover A, and the pivot pin d beyond the extension c ,'pro ect into the covered chamber 13. The pivot pin (Z is packed in the exte'nsionc of the pedestal by a stufling box d Lugs (0Z which grip under afiange c? on the pedestal C, prevent the upper carriage from pedestal. -The gun barrel E is mounted in the upper carriage by means of horizontal The gun'bai'rel is elevated by turning a V 'n' a. brac'ket'd? on the lower endiof the pivot pin and the rotation of] hich shaft f is" transmitted by a pair of bevel wheels f f to a hollow shaft F mounted in the'pivotpin (Z This shaft F the axis of Qhioh coincides with the axis which" is 1 mounted oi the'pivot d is, packed on the pivot pin by stufiingboxes f f"?. The end of shaft F, which projects between the walls of. the upper car riage D carries a bevel wheel 7" which gears KURTH HALLER," respecifica- 0' fixed on the extension" 0 which projects downward being lifted off; the

horizontal shaft f of -rotates; c l w h the'ihollowvchainber of the pivot with-a bevel wheel On the horizontal shaft 7,which carries the bevel wheel f and which is mounted in the upper carriage D is mounted a worm F9, which ears with a toothed sector 6 attached toft e gun;barrel'E. f "j Theelevation imparted to the barrel by means of the gears described can be read s off by the gun layer on'an elevation indicating disk chamber B F which is arranged in the *and provided with" a fixed pointer f The disk "F is driven independently the 'pinion gea-ring of the elevating gear "from the gun barrel, by means of a toothed sector mounted on the'gun barrel which gears with a toothed wheel 13 mounted. on the uppercarriaged), the rotation of whichis tr'ansmitted by a pair of bevel wheels 7 7? to a shaft 77 mounted in the hollow shaft F4 and packed therein by-stuiing boxes f f; Y To .the shaft f is positively connected the disk 1*? by three pairs' of bevel wheels f f and'f theshaftsof these gears being carried in, the bracketdtj The traversing wheel G,j'-the rotation ted by two pairs of ear isclriven by a hand of vwhich is transmitwhich gears with a worm wheel of the pedestalq Bearings d are-provided on the pivot pin bevelwheelsg' g to a d1 for-the shafts of the parts G g 9 9 or i hand wheel G is thel gearingf When the rotated, the'f ormgi-travels'over the fixed D and-the gun barrellE can be rotated about f theaxisoi thejpivot-c? cl by meansfof ithe, v

worm wheely c so that' the upper carriage pivot pin d l The. traverseiimparted to the gun barrel can be readofi on a? traverse indicating disk- G 'by'tl1B[Lld:Qf a fixed pointer 9 "The shaftg which carries the said disk G and rotatesin Ibearingsidi carries a toothed: wheel which gears with 'a' toothed wheel,

a mounted on the "extension of the pedestal c and'travelsover; when the -pivotlpin Three the pointiwheretheyventer the V d which packs the V the stationary extension of the pedestal 0 of the pinion gearings of the traversing gear and the indicatingapparatus corresponding thereto G g aswell as the important parts ofthe elevating gear together with the indicating apparatus ZLI'QQ'COIltZI-illGCl in the covered chamber B and are therefore protected against external influences. An additional advantage of "the arrangement consists in the fact that the gun is built-up complete outside the mounting and can he placed in the position prepared for'it'as a whole.

Claims; 1. An arrangement of the classcomprising a pivot gun, a carriage therefor,

a closed chamber said chamber bein arovided with an opening, a pedestalproject ing from said opening,a hollow pivot pin forming the axis for said gun carriage, saidpivot pin being supported by saidv pedestal, an extension on said pedestal projecting into the chamber and surrounding said pivot pin, means for packing the pivotpin inthe extension, means operatable from within the chamber and extending through said pivot pin for elevating the gun atable from within the chamber for rotat ing the pivot pin for traversing thegun.

2. An arrangement of the class described comprising a closed chamber, saidch'amber being provided with an opening, a lid t'or said opening, a pedestal projecting from through the hollow pivot pin said chamber, a pivot gun, a carriage-there? for, an elevating mechanism on said carriage, a hollow pivot p n supporting said carriage andforming an axis therefor, said pivot pin being supported by saidl pedestal and projecting throughsaid lid to .the interior of. the'chamber, means operatable' from r within said chamber and extending the elevating mechanism and means 1 also operatable from within said chamber for roe tating the .pivotpin to 'traverse the gun.

3. An arrangement of the class described comprising aclosed chamber provided with an opening, a cover forsaid opening, a pivot, gun, a carriage therefor,.janelevat1ng mechanism supported on said carriage, a pedestal projecting from the'opening of'the' champivot pin rotatably supported a on said pedestal, carrying saidgunlcarriage and forming an axis-therefor, said pivot'pin' ber a hollow projecting into said chamber, an; extension on said pedestal extending into said chain} her, and surrounding the pivot pin, means for packing said pivot pin in said pedestal extension, means carried bythe inner endof constantly described, l

and means operr.

terior ot'the chamber,

for operating projecting into said chamber,

said pivot pinand projecting through the center thereof for operating the gun elevatin meclanism andineans carried bysaid pivot pin for rotating the same to traverse the gun; V V r p An. arrangement of the'class described comprising a closed chamber provided with an opening, a cover for said opening,a pivot gun,a carriage therefor, an elevating mechanism supported on said carriage, a pedestal projecting from theopcning of the charm her, a hollow pivot pin rotatably supported on said pedestal, carrying said gun carriage and forming an axistherefor, said pivot pin projecting into said chamber, an extension on said pedestal extending into' said chamher, and surrounding the pivot pin, means fior packing said pivot pin in said pedestal extension, means carried by'the inner end of said pivot pin and projecting through the center thereof for operating the gun e1evat-.

ing mechanism and ,a wormiwheel fixed to' the pedestal extensionand means carried by the inner end of the pivot pin and cooperating therewith for rotating the pivot pin to traverse the gun.

5. An arrangement of the class described comprising a closedchamber, said chamber being provided with'an opening, a, lid for said opening, a pedestal projecting from said chamber, apivot gun, a carriage there.

for, an elevating mechanism on said car.-

riag'e, a hollow pivot pin supporting said carriage and forming an axis therefor, said pivot pin being'supported by said'pedestal.

and pro ecting through said. lid to the in from within said chamber and extending through the hollow} pivot. pin for operating the elevating mechanism, means. also operatablefrom within said chamber for rotating the pivot pin to traversethe gun, indicating devices for indicating the elevation and traverse imparted to the gun barrel,

means for supporting said indicating devices upon the lower end of said pivot pin and means independent of theelevating and traversing mechanism 'for operating the 111- dicating devices. 1

6. An arrangement of the classdescribed comprising a'close'd chamber provided with an opening, a cover for said opening, a pivot gun,"a' carriage therefor, an elevating mechanism supported on saidcarriage, a pedestal projecting-from the opening of theqchamber, hollow pivot pin rotatably. supported on said pedestal,carry ngfsaid gun carriage and forming an; axis-therefor, sa'idpivot pin on said pedestal extending into'said chain her, and "surrounding the pivot extension, means carried by the inner end of said pivot pin and projecting through the center thereof for operating the gun elevatmeans operatable' an extension.

, i pin, means" for packingsaid' pivot pin in said pedestal ing mechanism, means carried by said pivot pm for rotating the same to traverse the gun, a device for indicating the elevation imparted to the gun barrel, a device for indicating the traverse imparted to the gun barrel; said indicating devices being supported by the end of the pivot pin which projects into sald chamber, means inde- V pendent of the elevating means for connect 10 ing the first mentioned indicating device to the gun barrel andemeans independent 'of v the traversing means forconnecting'the sxec- 0nd mentioned indicating. device to thepimt 1n. 7. v The foregoing specification signed at 15 Essen, Germany, this 10th da of'June, 192' p V KURT HALLER- In presence of'' i HANS GOTTSMANN,

J OHANN DEcKnRs'. 

